package zuoye2;

public class Circle {
	
	private double r;
	public double getArea() {
		return r*r*3.14;
	}
	
	public double getRadius() {
		return r;
		
	}
	public double getCircumference() {
		return 2*r*3.14;
		
	}
	public Circle(double R){
		r=R;
	}
}
